BEIBEN concrete mixer truck; 6m3,8m3,9m3,10m3 and 12m3 Upper body dimension(CBM) ... ,1reverse gear, manual operated, with synchronizerBrake systemService brakeBrake gap can be adjusted automatically, double circulation air brake systemAssistant brakeEngine exhaust brakePark ... steel skeleton structure, covered with double layer steel plate;Can be tipped forwardly;With high back seat with arm for drive ...